Proceedings of the 28th European Paediatric Rheumatology Congress (PReS 2022)

Table 1 (abstract O21). PJPS at baseline, joint grouping/joint grouping

Single joints					Joint groupings
Joint	Baseline involvement frequency,^a n (%)	Baseline inflammation (mean PJPS)^b	PJPS W4 (mean %Δ)	PJPS W18 (mean %Δ)	Joint grouping	Baseline involvement frequency,^a,c n (%)	Baseline inflammation (mean PJPS)^b,c	PJPS W4 (mean %Δ)	PJPS W18 (mean %Δ)
Ankle	165 (73.3)	2.84	-38.60	-60.46	MCPs	48–98 (21.3–43.5)	2.08–2.65	-25.38	-35.75
Knee	176 (78.2)	2.76	-36.87	-55.82	PIPs	67–109 (29.8–48.4)	2.24–2.57	-21.68	-34.91
Wrist	156 (69.3)	2.76	-35.38	-55.04	Proximal foot^d	43–48 (19.1–21.3)	2.10–2.26	-22.24	-34.69
Elbow	94 (41.8)	2.29	-34.11	-41.88	MTPs	27–44 (12.0–19.6)	2.00–2.29	-16.88	-30.00
Shoulder	50 (22.2)	1.92	-32.41	-41.67	Toes	10–27 (4.4–12.0)	1.86–2.30	-12.50	-25.71
TMJ	53 (23.6)	1.77	-17.05	-31.38	DIPs	16–31 (7.1–13.8)	1.87–2.10	-16.83	-22.92

PJPS range: 0–4
^aJoint involvement defined as PJPS >0; ^bcalculated among patients with joint involvement at baseline; ^cbaseline values for joint groupings shown as ranges of included individual joints; ^dproximal foot comprised ankle, subtalar and intertarsal joints
Only joints that could be assessed for swelling, pain and/or tenderness were analysed. Acromioclavicular and sternoclavicular joints not shown due to low n for baseline involvement
DIP, distal interphalangeal; MCP, metacarpophalangeal; MTP, metatarsophalangeal; n, number of patients; PIP, proximal interphalangeal; PJPS, paired joint pathology score; TMJ, temporomandibular joint; W, week

ISSN: 1546-0096